. >> the vice president is going to come out and try to be defensive. the vice president, a strength of his, is his emotion and passion. that is both a positive and sometimes a weakness. you will see him come out and defend the president, not necessarily the debate performance from the other night but he will defend what the president has done. >>reporter: and defend what the president did not defend in the first presidential debate in denver. when you talk to senior obama officials that is what they are counting on, vice president biden not taking on paul ryan but looking past him and going after mitt romney, something the president didn't do very well the first time. >>shepard: and everyone knows where the excitement is. i was talking to a couple of democrats, movers and shakers off the plane last night who said, biden will be great, as long as he did not take foot and insert in mouth which i guess he does. >>reporter: he does that from time to time. you remember a big one a few months ago when he changed the president's policy or got ahead of the pre